The wavelengths of 71 strong O ii lines between 4676 and 525 Å have been measured, based on a high-frequency discharge. Improved energy levels have been derived. Smoothed wavelengths have been recalculated from these. The uncertainty is about 1 mÅ.
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A visual estimate of relative intensity, with application of the Kodak 103a-O sensitivity curve.
B: from Beals.3 The others are from Wenåker.2
Recalculated from the levels.
Table 2
O ii: Some New Wavelengths in the Vacuum Ultraviolet, λvac
A visual estimate of the blackening on Kodak SWR plates.
B: from Bowen.4 E: from Edlén.5 The others are from Boyce and Rieke.6
Recalculated from the levels, assuming LS-coupling intensities.
Blended with S iii.
Blended with C iii
A visual estimate of relative intensity, with application of the Kodak 103a-O sensitivity curve.
B: from Beals.3 The others are from Wenåker.2
Recalculated from the levels.
Table 2
O ii: Some New Wavelengths in the Vacuum Ultraviolet, λvac
A visual estimate of the blackening on Kodak SWR plates.
B: from Bowen.4 E: from Edlén.5 The others are from Boyce and Rieke.6
Recalculated from the levels, assuming LS-coupling intensities.
Blended with S iii.
Blended with C iii